Analysers paired to streamline SoundWave audio test

19th September 2016

Mick Elliott

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A collaboration between Audio Precision and LnK will address the SoundWire audio test needs of MIPI Alliance member companies by Combining an APx Series audio analyser with LnK’s protocol analyser creates a closed-loop measurement system for the real-time evaluation of chipset and mobile product designs incorporating MIPI’s SoundWire interface.

Developed to address the limitations—such as power, pin count, ease-of-integration, scalability—of legacy interface designs, MIPI SoundWire reflects the efforts of more than 25 MIPI Alliance members and offers both complementary and unique features as an alternative to MIPI SLIMbus for the integration of audio devices in mobile, or mobile-inspired, systems.

SoundWire can be implemented in small, very cost-sensitive audio peripherals such as amplifiers and microphones and offers features that include double data rate; low complexity, power and latency; PCM and PDM formats; and multichannel data.

The pairing of an APx Series audio analyser and LnK protocol analyser eliminates the need for device designers to develop their own SoundWire Master IP in order to conduct audio testing.

More importantly, it offers additional, real-time test capabilities, including the measurement of propagation delay, acoustic response and other transient behaviours.

“We’re excited to collaborate with LnK and streamline the audio test of SoundWire devices” said Spyros Lazaris, Audio Precision Vice President of Sales and Marketing. “And helping engineers, in this case mobile chipset and product designers, as they endeavour to develop and verify the performance of their next-generation systems is at the core of what we do.”